Home / 141,551.88-195,349.86-81,141.24

Finding the Fourth Proportional to 141,551.88, 195,349.86 and 81,141.24

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Solution

The fourth proportional to 141,551.88, 195,349.86 and 81,141.24 is: 111,979.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,551.88 : 195,349.86 = 81,141.24 : x
  2. Step 2: Convert to fraction form
    141,551.88/195,349.86 = 81,141.24/x
  3. Step 3: Cross multiply
    141,551.88x = 195,349.86 × 81,141.24
  4. Step 4: Simplify right side
    141,551.88x = 15,850,929,874.23
  5. Step 5: Solve for x
    x = 15,850,929,874.23/141,551.88
  6. Step 6: Final answer
    x = 111,979.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.